Respuesta :
Answer:
There are 4 Phones in the Family phone Plan.
Step-by-step explanation:
Given:
Monthly payment for each phone = [tex]\$22.91+\$20= \$42.91[/tex]
Let the number of phones in the plan be x
cost of the family data plan per month = [tex]\$70[/tex]
Total Monthly bill = [tex]\$241.64[/tex]
Total Monthly bill = Monthly payment for each phone [tex]\times[/tex]number of phones in the plan [tex]+[/tex] cost of the family data plan per month
∴ The equation becomes after substituting the value,
[tex](42.91 \times x) + 70 = 241.64\\42.91x=241.64-70\\42.91x=171.64\\x= \frac{171.64}{42.91}\\x=4[/tex]
∴There are 4 Phones in the Family phone Plan
The number of phones on the family phone plan given in the question is;
4 phones
We are given;
Monthly payment for each phone = $22.91 + $20 = $42.91
Monthly cost of family data plan = $70
Total Monthly bill = $241.64
If the number of phones on the plan is p, then we have;
42.91p + 70 = 241.64
Using substitution property of equality, subtract 70 from both sides;
42.91p + 70 - 70 = 241.64 - 70
42.91p = 171.64
divide both sides by 42.91 to get;
p = 171.64/42.91
p = 4 phones
Thus, in conclusion, there are 4 phones on the plan.
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